DQDB网络实现多点实时通信的模型及性能分析

Model and analysis of DQDB network for multicast real-time communication

网络正向着提供综合服务能力的方向发展。提供多播和实时通信服务正成为研究热点。我们提出一种在DQDB网络中实现多点实时通信的模型 ,分析了期望的性质和实现的主要问题 ,并介绍了在该模型下消息处理过程。之后讨论了在这个模型下多点实时通信的性能 ,着重分析了不同调度方式和不同网络负荷对实时数据的时延影响。

Next-generation networks are expected to support a wide variety of services. To provide some services such as multicast and real-time communication is one of the important research areas. We propose a model of multicast real-time in DQDB network, examine the desired properties and the difficulties in achieving these properties, and introduce its main message process. Then, we analysis its performance, mainly discuss the effect of traffic load and different scheduling mechanisms under this model.